On the Consideration of the Quintessence

and may it reduce every digestion to equalities, and remove every excess at such a time and in such a quantity as to restore that which was lost. May it cause the natural moisture to abound, and may it prevent the fire from appearing to inflame the weak; and by fate, without falsehood, it collects the elements—this something which is included from the spirit by the material proposition of the elements, because all such things are corruptible and subject to infirmity. And every corruptible thing added to its thread increases it, and all physicians must perceive that corruptible things, because they are elements or composed materially from elements, had never been able to reach the duration? which I anticipate?. But since whatever is corruptible in this world for the use of the human body consists of elements or is from elements, up to the middle? of life, it cannot be found by men in this age that can perpetuate the body up to the ultimate limit of a man’s life.

Concerning our Heaven, or the Quintessence

To which it must be answered thus: that the thing must exist in such a way with respect to the earth—which the voluntary? things from which my body is separated—just as the heaven exists with respect to all the elements. The philosophers have called the heaven the quintessence with respect to the four elements, which the heaven is in itself.